/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 09:54:15,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 09:54:15,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 09:54:15,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 09:54:15,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 09:54:15,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 09:54:15,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 09:54:15,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 09:54:15,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 09:54:15,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 09:54:15,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 09:54:15,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 09:54:15,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 09:54:15,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 09:54:15,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 09:54:15,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 09:54:15,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 09:54:15,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 09:54:15,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 09:54:15,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 09:54:15,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-02 09:54:15,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 09:54:15,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 09:54:15,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 09:54:15,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 09:54:15,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 09:54:15,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 09:54:15,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 09:54:15,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 09:54:15,597 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 09:54:15,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 09:54:15,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 09:54:15,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 09:54:15,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 09:54:15,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 09:54:15,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 09:54:15,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 09:54:15,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 09:54:15,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 09:54:15,794 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 09:54:15,795 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 09:54:15,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2022-03-02 09:54:15,796 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2022-03-02 09:54:15,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 09:54:15,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 09:54:15,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 09:54:15,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 09:54:15,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 09:54:15,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,842 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 09:54:15,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 09:54:15,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 09:54:15,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 09:54:15,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 09:54:15,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 09:54:15,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 09:54:15,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 09:54:15,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 09:54:15,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/1) ... [2022-03-02 09:54:15,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 09:54:15,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:15,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 09:54:15,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 09:54:15,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 09:54:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 09:54:15,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 09:54:15,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 09:54:15,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 09:54:15,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 09:54:15,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 09:54:15,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 09:54:15,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 09:54:15,919 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 09:54:15,955 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 09:54:15,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 09:54:16,050 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 09:54:16,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 09:54:16,055 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 09:54:16,056 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 09:54:16 BoogieIcfgContainer [2022-03-02 09:54:16,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 09:54:16,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 09:54:16,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 09:54:16,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 09:54:16,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:54:15" (1/2) ... [2022-03-02 09:54:16,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cdf482 and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 09:54:16, skipping insertion in model container [2022-03-02 09:54:16,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 09:54:16" (2/2) ... [2022-03-02 09:54:16,081 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2022-03-02 09:54:16,084 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 09:54:16,084 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 09:54:16,085 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 09:54:16,085 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 09:54:16,121 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 09:54:16,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 09:54:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:16,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 09:54:16,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 09:54:16,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 09:54:16,192 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 09:54:16,192 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 09:54:16,468 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 573 transitions and produced 527 states. [2022-03-02 09:54:16,471 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:54:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:54:16,476 INFO L85 PathProgramCache]: Analyzing trace with hash 125223525, now seen corresponding path program 1 times [2022-03-02 09:54:16,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:54:16,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709743532] [2022-03-02 09:54:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:54:16,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:54:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:54:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2747 backedges. 2096 proven. 627 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:17,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:54:17,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709743532] [2022-03-02 09:54:17,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709743532] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:54:17,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983589441] [2022-03-02 09:54:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:54:17,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:17,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:17,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:54:17,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 09:54:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:54:17,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-02 09:54:17,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:54:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2747 backedges. 2193 proven. 530 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:18,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:54:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2747 backedges. 2193 proven. 530 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:19,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983589441] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:54:19,127 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:54:19,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 40] total 69 [2022-03-02 09:54:19,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218761699] [2022-03-02 09:54:19,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:54:19,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-03-02 09:54:19,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:54:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-03-02 09:54:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1376, Invalid=3454, Unknown=0, NotChecked=0, Total=4830 [2022-03-02 09:54:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:19,151 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:54:19,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 4.871428571428571) internal successors, (341), 69 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:54:19,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:21,604 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 926 transitions and produced 801 states. [2022-03-02 09:54:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:21,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 09:54:21,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 09:54:21,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:54:21,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:54:21,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1573452620, now seen corresponding path program 2 times [2022-03-02 09:54:21,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:54:21,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541010332] [2022-03-02 09:54:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:54:21,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:54:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:54:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 7004 backedges. 5464 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:54:23,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:54:23,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541010332] [2022-03-02 09:54:23,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541010332] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:54:23,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996736106] [2022-03-02 09:54:23,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 09:54:23,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:23,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:23,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:54:23,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 09:54:23,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 09:54:23,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:54:23,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 60 conjunts are in the unsatisfiable core [2022-03-02 09:54:23,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:54:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 7004 backedges. 4309 proven. 1540 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-03-02 09:54:24,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:54:24,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7004 backedges. 4309 proven. 1540 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-03-02 09:54:24,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996736106] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:54:24,960 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:54:24,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 59, 59] total 84 [2022-03-02 09:54:24,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90039390] [2022-03-02 09:54:24,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:54:24,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-03-02 09:54:24,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:54:24,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-03-02 09:54:24,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1980, Invalid=5160, Unknown=0, NotChecked=0, Total=7140 [2022-03-02 09:54:24,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:24,964 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:54:24,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 4.129411764705883) internal successors, (351), 84 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:54:24,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:24,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:26,421 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1381 transitions and produced 1209 states. [2022-03-02 09:54:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:54:26,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-02 09:54:26,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:26,636 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:54:26,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:54:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1674698869, now seen corresponding path program 3 times [2022-03-02 09:54:26,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:54:26,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986327888] [2022-03-02 09:54:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:54:26,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:54:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:54:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 14171 backedges. 7010 proven. 7137 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:29,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:54:29,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986327888] [2022-03-02 09:54:29,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986327888] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:54:29,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299849141] [2022-03-02 09:54:29,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 09:54:29,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:29,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:29,798 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:54:29,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 09:54:30,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 62 check-sat command(s) [2022-03-02 09:54:30,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:54:30,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 123 conjunts are in the unsatisfiable core [2022-03-02 09:54:30,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:54:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 14171 backedges. 7188 proven. 6959 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:30,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:54:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14171 backedges. 7188 proven. 6959 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:31,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299849141] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:54:31,977 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:54:31,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 110, 110] total 113 [2022-03-02 09:54:31,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577913810] [2022-03-02 09:54:31,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:54:31,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-03-02 09:54:31,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:54:31,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-03-02 09:54:31,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3252, Invalid=9630, Unknown=0, NotChecked=0, Total=12882 [2022-03-02 09:54:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:31,981 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:54:31,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 4.614035087719298) internal successors, (526), 113 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:54:31,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:31,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:54:31,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:37,728 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1414 transitions and produced 1172 states. [2022-03-02 09:54:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:54:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:54:37,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 09:54:37,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:37,929 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:54:37,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:54:37,930 INFO L85 PathProgramCache]: Analyzing trace with hash 788307708, now seen corresponding path program 4 times [2022-03-02 09:54:37,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:54:37,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773773614] [2022-03-02 09:54:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:54:37,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:54:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:54:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 14000 backedges. 8005 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:54:41,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:54:41,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773773614] [2022-03-02 09:54:41,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773773614] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:54:41,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257166359] [2022-03-02 09:54:41,541 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 09:54:41,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:41,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:41,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:54:41,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 09:54:41,659 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 09:54:41,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:54:41,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 114 conjunts are in the unsatisfiable core [2022-03-02 09:54:41,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:54:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 14000 backedges. 7874 proven. 5995 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-03-02 09:54:42,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:54:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 14000 backedges. 7874 proven. 5995 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-03-02 09:54:43,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257166359] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:54:43,233 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:54:43,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 113, 113] total 122 [2022-03-02 09:54:43,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724719630] [2022-03-02 09:54:43,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:54:43,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2022-03-02 09:54:43,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:54:43,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2022-03-02 09:54:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3855, Invalid=11151, Unknown=0, NotChecked=0, Total=15006 [2022-03-02 09:54:43,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:43,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:54:43,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 4.0894308943089435) internal successors, (503), 122 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:54:43,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:43,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:54:43,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:54:43,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:47,179 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1869 transitions and produced 1580 states. [2022-03-02 09:54:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:54:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:54:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:54:47,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 09:54:47,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:47,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:54:47,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:54:47,382 INFO L85 PathProgramCache]: Analyzing trace with hash 185526821, now seen corresponding path program 5 times [2022-03-02 09:54:47,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:54:47,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869332367] [2022-03-02 09:54:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:54:47,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:54:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:54:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 24995 backedges. 14840 proven. 10131 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:52,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:54:52,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869332367] [2022-03-02 09:54:52,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869332367] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:54:52,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115910669] [2022-03-02 09:54:52,502 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 09:54:52,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:54:52,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:54:52,503 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:54:52,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 09:54:52,740 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 89 check-sat command(s) [2022-03-02 09:54:52,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:54:52,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 161 conjunts are in the unsatisfiable core [2022-03-02 09:54:52,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:54:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 24995 backedges. 15099 proven. 9872 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:53,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:54:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 24995 backedges. 15099 proven. 9872 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:54:56,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115910669] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:54:56,295 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:54:56,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [149, 148, 148] total 183 [2022-03-02 09:54:56,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270005764] [2022-03-02 09:54:56,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:54:56,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 184 states [2022-03-02 09:54:56,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:54:56,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2022-03-02 09:54:56,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8555, Invalid=25117, Unknown=0, NotChecked=0, Total=33672 [2022-03-02 09:54:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:54:56,302 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:54:56,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 184 states, 184 states have (on average 4.385869565217392) internal successors, (807), 183 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:54:56,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:54:56,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:54:56,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:54:56,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:54:56,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:55:09,018 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2222 transitions and produced 1847 states. [2022-03-02 09:55:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:55:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:55:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:55:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:55:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:55:09,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-02 09:55:09,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:55:09,227 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:55:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:55:09,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1181258484, now seen corresponding path program 6 times [2022-03-02 09:55:09,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:55:09,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286569171] [2022-03-02 09:55:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:55:09,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:55:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:55:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 35948 backedges. 22582 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:55:17,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:55:17,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286569171] [2022-03-02 09:55:17,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286569171] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:55:17,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561325106] [2022-03-02 09:55:17,743 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 09:55:17,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:55:17,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:55:17,745 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:55:17,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 09:55:18,288 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 108 check-sat command(s) [2022-03-02 09:55:18,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:55:18,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 192 conjunts are in the unsatisfiable core [2022-03-02 09:55:18,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:55:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 35948 backedges. 22582 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:55:19,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:55:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 35948 backedges. 22582 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:55:23,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561325106] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:55:23,626 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:55:23,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 191, 191] total 240 [2022-03-02 09:55:23,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821246629] [2022-03-02 09:55:23,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:55:23,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 241 states [2022-03-02 09:55:23,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:55:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 241 interpolants. [2022-03-02 09:55:23,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14772, Invalid=43068, Unknown=0, NotChecked=0, Total=57840 [2022-03-02 09:55:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:55:23,634 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:55:23,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 241 states, 241 states have (on average 4.078838174273859) internal successors, (983), 240 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:55:23,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:55:23,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:55:23,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:55:23,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:55:23,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:55:23,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:55:38,189 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3013 transitions and produced 2495 states. [2022-03-02 09:55:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:55:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:55:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:55:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:55:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:55:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:55:38,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 09:55:38,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:55:38,391 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:55:38,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:55:38,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1104139181, now seen corresponding path program 7 times [2022-03-02 09:55:38,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:55:38,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570864595] [2022-03-02 09:55:38,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:55:38,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:55:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:55:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 63707 backedges. 37586 proven. 26097 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:55:51,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:55:51,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570864595] [2022-03-02 09:55:51,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570864595] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:55:51,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128638585] [2022-03-02 09:55:51,690 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 09:55:51,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:55:51,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:55:51,691 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:55:51,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 09:55:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:55:51,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 255 conjunts are in the unsatisfiable core [2022-03-02 09:55:51,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:55:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 63707 backedges. 37998 proven. 25685 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:55:53,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:55:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 63707 backedges. 37998 proven. 25685 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:55:58,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128638585] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:55:58,645 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:55:58,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [243, 242, 242] total 293 [2022-03-02 09:55:58,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155042974] [2022-03-02 09:55:58,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:55:58,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 294 states [2022-03-02 09:55:58,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:55:58,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 294 interpolants. [2022-03-02 09:55:58,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21792, Invalid=64350, Unknown=0, NotChecked=0, Total=86142 [2022-03-02 09:55:58,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:55:58,664 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:55:58,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 294 states, 294 states have (on average 4.2482993197278915) internal successors, (1249), 293 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:55:58,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:56:34,452 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3526 transitions and produced 2914 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:56:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2022-03-02 09:56:34,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 09:56:34,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 09:56:34,654 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:56:34,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:56:34,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1744293052, now seen corresponding path program 8 times [2022-03-02 09:56:34,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:56:34,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238588507] [2022-03-02 09:56:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:56:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:56:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:56:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 89864 backedges. 54619 proven. 35245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:56:55,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:56:55,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238588507] [2022-03-02 09:56:55,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238588507] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:56:55,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094986420] [2022-03-02 09:56:55,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 09:56:55,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:56:55,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:56:55,571 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:56:55,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 09:56:55,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 09:56:55,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:56:55,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 270 conjunts are in the unsatisfiable core [2022-03-02 09:56:55,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:56:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 89864 backedges. 52568 proven. 35245 refuted. 0 times theorem prover too weak. 2051 trivial. 0 not checked. [2022-03-02 09:56:57,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:56:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 89864 backedges. 52568 proven. 35245 refuted. 0 times theorem prover too weak. 2051 trivial. 0 not checked. [2022-03-02 09:56:59,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094986420] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:56:59,333 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:56:59,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [302, 269, 269] total 302 [2022-03-02 09:56:59,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987041219] [2022-03-02 09:56:59,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:56:59,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 303 states [2022-03-02 09:56:59,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:56:59,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 303 interpolants. [2022-03-02 09:56:59,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23343, Invalid=68163, Unknown=0, NotChecked=0, Total=91506 [2022-03-02 09:56:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:56:59,342 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:56:59,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 303 states, 303 states have (on average 4.036303630363037) internal successors, (1223), 302 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 320 states. [2022-03-02 09:56:59,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:57:23,477 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3981 transitions and produced 3322 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2022-03-02 09:57:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2022-03-02 09:57:23,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 09:57:23,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:57:23,681 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:57:23,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:57:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash 219283053, now seen corresponding path program 9 times [2022-03-02 09:57:23,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:57:23,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095403477] [2022-03-02 09:57:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:57:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:57:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:57:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 113603 backedges. 54314 proven. 59264 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-02 09:57:48,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:57:48,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095403477] [2022-03-02 09:57:48,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095403477] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:57:48,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830689903] [2022-03-02 09:57:48,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 09:57:48,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:57:48,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:57:48,456 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:57:48,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 09:57:51,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 167 check-sat command(s) [2022-03-02 09:57:51,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:57:51,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 341 conjunts are in the unsatisfiable core [2022-03-02 09:57:51,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:57:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 113603 backedges. 54314 proven. 59264 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-02 09:57:53,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:57:57,066 INFO L134 CoverageAnalysis]: Checked inductivity of 113603 backedges. 54314 proven. 59264 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-02 09:57:57,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830689903] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:57:57,067 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:57:57,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [329, 328, 328] total 339 [2022-03-02 09:57:57,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945327182] [2022-03-02 09:57:57,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:57:57,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 340 states [2022-03-02 09:57:57,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:57:57,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 340 interpolants. [2022-03-02 09:57:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29073, Invalid=86187, Unknown=0, NotChecked=0, Total=115260 [2022-03-02 09:57:57,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:57:57,076 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:57:57,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 340 states, 340 states have (on average 4.188235294117647) internal successors, (1424), 339 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:57:57,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 320 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 406 states. [2022-03-02 09:57:57,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:58:38,996 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4429 transitions and produced 3642 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2022-03-02 09:58:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2022-03-02 09:58:39,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2022-03-02 09:58:39,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 09:58:39,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 09:58:39,202 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 09:58:39,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:58:39,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1876081421, now seen corresponding path program 10 times [2022-03-02 09:58:39,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:58:39,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070326740] [2022-03-02 09:58:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:58:39,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:58:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:59:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 136867 backedges. 76880 proven. 59963 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:59:08,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:59:08,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070326740] [2022-03-02 09:59:08,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070326740] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 09:59:08,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859393741] [2022-03-02 09:59:08,299 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 09:59:08,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 09:59:08,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:59:08,301 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 09:59:08,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 09:59:08,595 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 09:59:08,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 09:59:08,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 373 conjunts are in the unsatisfiable core [2022-03-02 09:59:08,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 09:59:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 136867 backedges. 77469 proven. 59374 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:59:10,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 09:59:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 136867 backedges. 77469 proven. 59374 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 09:59:18,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859393741] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 09:59:18,488 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 09:59:18,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [361, 360, 360] total 411 [2022-03-02 09:59:18,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334395749] [2022-03-02 09:59:18,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 09:59:18,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 412 states [2022-03-02 09:59:18,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:59:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 412 interpolants. [2022-03-02 09:59:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42619, Invalid=126713, Unknown=0, NotChecked=0, Total=169332 [2022-03-02 09:59:18,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:59:18,503 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:59:18,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 412 states, 412 states have (on average 4.177184466019417) internal successors, (1721), 411 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 320 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 406 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 502 states. [2022-03-02 09:59:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:46,618 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4942 transitions and produced 4061 states. [2022-03-02 10:00:46,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 10:00:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 10:00:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 10:00:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:00:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 10:00:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2022-03-02 10:00:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2022-03-02 10:00:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2022-03-02 10:00:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2022-03-02 10:00:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 438 states. [2022-03-02 10:00:46,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 10:00:46,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 10:00:46,848 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:00:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:00:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1989271644, now seen corresponding path program 11 times [2022-03-02 10:00:46,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:00:46,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201564270] [2022-03-02 10:00:46,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:46,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:00:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:01:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 174116 backedges. 100580 proven. 73536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:01:26,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:01:26,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201564270] [2022-03-02 10:01:26,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201564270] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:01:26,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42660258] [2022-03-02 10:01:26,835 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 10:01:26,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:01:26,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:01:26,836 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:01:26,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-02 10:01:28,878 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 226 check-sat command(s) [2022-03-02 10:01:28,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:01:28,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 420 conjunts are in the unsatisfiable core [2022-03-02 10:01:28,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:01:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 174116 backedges. 100580 proven. 73536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:01:31,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:01:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 174116 backedges. 100580 proven. 73536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:01:42,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42660258] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:01:42,330 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:01:42,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [420, 419, 419] total 484 [2022-03-02 10:01:42,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619374328] [2022-03-02 10:01:42,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:01:42,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 485 states [2022-03-02 10:01:42,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:01:42,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 485 interpolants. [2022-03-02 10:01:42,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59288, Invalid=175452, Unknown=0, NotChecked=0, Total=234740 [2022-03-02 10:01:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:01:42,347 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:01:42,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 485 states, 485 states have (on average 4.039175257731959) internal successors, (1959), 484 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 320 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 406 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 502 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 438 states. [2022-03-02 10:01:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:03:23,862 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5845 transitions and produced 4789 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2022-03-02 10:03:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 438 states. [2022-03-02 10:03:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 679 states. [2022-03-02 10:03:23,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-02 10:03:24,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-02 10:03:24,065 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:03:24,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:03:24,065 INFO L85 PathProgramCache]: Analyzing trace with hash 122299757, now seen corresponding path program 12 times [2022-03-02 10:03:24,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:03:24,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766111179] [2022-03-02 10:03:24,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:03:24,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:03:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:04:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 237875 backedges. 130098 proven. 107753 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:04:15,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:04:15,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766111179] [2022-03-02 10:04:15,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766111179] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:04:15,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306293414] [2022-03-02 10:04:15,386 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 10:04:15,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:04:15,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:04:15,387 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:04:15,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-02 10:04:20,218 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 258 check-sat command(s) [2022-03-02 10:04:20,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:04:20,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 491 conjunts are in the unsatisfiable core [2022-03-02 10:04:20,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:04:23,052 INFO L134 CoverageAnalysis]: Checked inductivity of 237875 backedges. 130864 proven. 106987 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:04:23,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:04:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 237875 backedges. 130864 proven. 106987 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-02 10:04:33,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306293414] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:04:33,148 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:04:33,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [479, 478, 478] total 529 [2022-03-02 10:04:33,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769401106] [2022-03-02 10:04:33,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:04:33,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 530 states [2022-03-02 10:04:33,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:04:33,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 530 interpolants. [2022-03-02 10:04:33,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70408, Invalid=209962, Unknown=0, NotChecked=0, Total=280370 [2022-03-02 10:04:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:04:33,174 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:04:33,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 530 states, 530 states have (on average 4.137735849056604) internal successors, (2193), 529 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2022-03-02 10:04:33,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 320 states. [2022-03-02 10:04:33,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 406 states. [2022-03-02 10:04:33,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 502 states. [2022-03-02 10:04:33,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 438 states. [2022-03-02 10:04:33,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 679 states. [2022-03-02 10:04:33,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-02 10:06:22,994 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:06:22,994 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:06:22,994 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:06:23,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-02 10:06:23,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-02 10:06:23,286 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-03-02 10:06:23,288 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 10:06:23,289 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 10:06:23,289 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 10:06:23,293 INFO L732 BasicCegarLoop]: Path program histogram: [12] [2022-03-02 10:06:23,295 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:06:23,295 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:06:23,306 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:06:23 BasicIcfg [2022-03-02 10:06:23,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:06:23,307 INFO L158 Benchmark]: Toolchain (without parser) took 727486.15ms. Allocated memory was 190.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 153.6MB in the beginning and 736.8MB in the end (delta: -583.1MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-03-02 10:06:23,307 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 190.8MB. Free memory was 154.9MB in the beginning and 154.8MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:06:23,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.57ms. Allocated memory is still 190.8MB. Free memory was 153.6MB in the beginning and 152.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-02 10:06:23,308 INFO L158 Benchmark]: Boogie Preprocessor took 17.44ms. Allocated memory is still 190.8MB. Free memory was 152.1MB in the beginning and 151.2MB in the end (delta: 894.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:06:23,308 INFO L158 Benchmark]: RCFGBuilder took 193.95ms. Allocated memory is still 190.8MB. Free memory was 151.0MB in the beginning and 142.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 10:06:23,308 INFO L158 Benchmark]: TraceAbstraction took 727249.32ms. Allocated memory was 190.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 141.6MB in the beginning and 736.8MB in the end (delta: -595.2MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-03-02 10:06:23,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 190.8MB. Free memory was 154.9MB in the beginning and 154.8MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.57ms. Allocated memory is still 190.8MB. Free memory was 153.6MB in the beginning and 152.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.44ms. Allocated memory is still 190.8MB. Free memory was 152.1MB in the beginning and 151.2MB in the end (delta: 894.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 193.95ms. Allocated memory is still 190.8MB. Free memory was 151.0MB in the beginning and 142.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 727249.32ms. Allocated memory was 190.8MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 141.6MB in the beginning and 736.8MB in the end (delta: -595.2MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 727.1s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 442.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3864, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 18.4s SatisfiabilityAnalysisTime, 262.5s InterpolantComputationTime, 23408 NumberOfCodeBlocks, 23408 NumberOfCodeBlocksAsserted, 930 NumberOfCheckSat, 35076 ConstructedInterpolants, 0 QuantifiedInterpolants, 172494 SizeOfPredicates, 36 NumberOfNonLiveVariables, 17766 ConjunctsInSsa, 2853 ConjunctsInUnsatCore, 36 InterpolantComputations, 0 PerfectInterpolantSequences, 1547331/2744691 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-03-02 10:06:23,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-02 10:06:23,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !SESSION 2022-03-02 09:54:13.758 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl !ENTRY org.eclipse.osgi 4 0 2022-03-02 10:06:23.762 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac1f9dbc/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac1f9dbc/.metadata/.log.